The Mighty Mitochondria Created By: Khadija
Where Am I Found? • I have my own DNA (mDNA). • I am thought to have derived from a bacteria-like cell, which incorporated into eukaryotic cells. • Eukaryotic cells are cells with membrane bound organelles (cell parts) that have a formal nucleus. • I am found in eukaryotic cells, like plant and animal cells.
What Do I Look Like? (Inner Membrane) Cristae Matrix (Fluid) Outer Membrane
I Am the “Powerhouse” of the Cell • I supply energy to the cell through the process of cellular respiration. • This occurs in my cristae (inner membrane). • The energy I produce is in the form of ATP (adenosine triphosphate).
How’s the Energy Formed? • ATP is formed in electron transport chain. • The ETC transfers protons (H+) from the inner compartment to the outer. • As the protons flow back to the inner compartment, the energy of their movement is used to add phosphate to ADP (adenosine diphosphate), forming ATP.
cyt c Q 8 7 6 5 3 4 4 2 2 1 9 ATP ADP + Pi What Does This Look Like? Click here to know more… H+ H+ H+ H+ H+ 2H+ 1/2O2 NAD H+ OH- OH- H+ H2O 10 NADH H2O H2O
Without the Mitochondria… • Cells wouldn’t have enough energy to survive. Cardiac Cells
When Your Cells Die… • Tissues die. Cardiac Tissue
When Tissues Die… • Organs fail. Example: The Heart stops beating.
Without Your Organs Functioning… • You’ll keel over and die. If only I had enough energy to stay on the wall!
So Why Am I Important? • It’s all connected. • If one level fails, all levels fail. • You’re made of organ systems that are made of organs that are made of tissues that are made of cells that are made of organelles like me, the “Mighty Mitochondria.” If I fail, you fail, or should I say, die!
Works Cited • Microsoft Office ClipArt http://office.microsoft.com/clipart/default.aspx?lc=en-us • Structure and Function in Cell Biology http://darwin.nmsu.edu/~molbio/cell/Organelle.html • The Biology Project: Cell Biology www.biology.arizona.edu/cell_bio/cell_bio.html